US Patent 11349805 Content node selection based on classless prefix

Systems, methods, apparatuses, and software that announce prefixes associated content nodes of a content delivery network are provided herein. In one example, a method of operating a communication system comprising Internet service providers configured to exchange content requests between end user devices and content nodes is presented. The method includes assigning a content node of the content delivery network a first Internet Protocol (IP) address having an associated first short prefix and a first long prefix, and assigning the content node a second IP address having an associated second short prefix and a second long prefix. The method also includes announcing the first short prefix and the first long prefix to a first Internet service provider communicatively coupled to the content node, and announcing the second short prefix and the second long prefix to a second Internet service provider communicatively coupled to the content node.